It doesn't tend to exist with most other instruments, for the simple reason that instruments need to be a particular size for pitch/acoustical reasons, finger h

It doesn't tend to exist with most other instruments, for the simple reason that instruments need to be a particular size for pitch/acoustical reasons, finger holes for wind instruments need to be in specific places, etc. But it's certainly more possible with a keyboard instrument. For instance, organ and harpsichord keyboards are routinely smaller than the modern piano keyboard.